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To close my series on defense Tanner Roark Jersey , I’d like to put forth a glossary of statistics used to measure fielding. Much like HH did recently for pitching, I’ll provide a brief definition of traditional and..."Catch Probability – according to MLB.com: “the likelihood that a batted ball to the outfield will be caught, based on four important pieces of information tracked by Statcast. 1. How far did the fielder have to go? 2. How much time did he have to get there. 3. What direction did he need to go in? 4. Was proximity to the wall a factor?”Plays are sorted into five categories based on their catch probability. 0-25% = 5 Star play; 26-50% = 4 Star play; 51-75% = 3 Star play; 76-90% = 2 Star play; 91-95% = 1 Star playOuts Above Average (OAA) – the cumulative effect of all individual Catch Probability plays a fielder has been credited or debited with, making it a range-based metric of fielding skill that accounts for the number of plays made and the difficulty of them. For example, a successful play made with a 75% catch probability receives a +0.25 credit; an unsuccessful attempt on the same play receives a – 0.75 debit. The cumulative score at the end of a season represents OAA.Arm Strength (ARM) – an estimation of how much value a player adds with his throwing ability, using the maximum velocity of any throw made by a fielderPop Time (POP) - number of seconds from the moment the pitch hits the catcher’s mitt to the moment it reaches the fielder’s projected receiving point at the center of the baseErik Williams-USA TODAY SportsExchange - how quickly the catcher releases the ball, measured in secondsFirst Step – time elapsed from contact to the fielder’s first movement toward the ballDistance Covered – total distance covered by a fielder in his pursuit from the time a batter makes contact to the moment the ball is fieldedRoute Efficiency – Distance Covered divided by a straight-line difference between where the player was positioned at contact and where the ball was fieldedCautions/Limitations1. Defensive data are more prone to error because there is still a fair amount of reliance on human scores to compile data2. Most defensive statistics are not useful in small samples. They require at least one season’s worth of data to stabilize, but more often are best served with samples of three years or larger.3. A few of the defensive metrics (e.g., DRS, UZR) do not account for positional alignment, which can result in misleading interpretations4. There are different iterations for some of the defensive stats. For instance Khris Davis Jersey , Baseball Reference (DefEff) and MLB.com (DER) have different definitions/formulae for the team-wide Defensive Efficiency metric. Although they are similar, they are not identical.So, what did I miss? Are there any other important defensive fielding statistics that should be added to this glossary? Or what other cautions should be applied when interpreting defensive stats and making inferences from them? Let us know in the comments. Seunghwan Oh will figure prominently into the late-inning bullpen mix for the Rockies in 2019."WhiteFanposts Fanshots Sections Scaling the RocksPebble ReportRockpileRockies Game ThreadsRockies Fan ExperienceRockpileThe Rockies need Seunghwan Oh to be a big part of the 2019 bullpenNew,87commentsRockies news and links for February 23, 2019MSTShareTweetShareShareThe Rockies need Seunghwan Oh to be a big part of the 2019 bullpenHappy first day of spring training games! The Colorado Rockies play the Arizona Diamondbacks today at 1:10 PM MT at Salt River Fields at Talking Stick. Chad Bettis will be pitching for the Rockies, with Matt Koch taking the hill for the D-Backs. Also scheduled to pitch for the Rox are Jeff Hoffman, Chi Chi Gonz谩lez, DJ Johnson, Justin Lawrence (No. 15 PuRP) and Yency Almonte, Thomas Harding of MLB.com reports. There will be no television broadcast, but you can listen to the radio call on KOA 850 AM. I will also be live-tweeting the game on the Purple Row Twitter account and you are more than welcome to follow along there as well!鈽?鈽?鈽匫h stays focused despite missing home country | Rockies.comThe Rockies will be heavily relying upon Seunghwan Oh to replicate his 2018 season in the coming year. With Adam Ottavino lost to the New York Yankees http://www.athleticsfanproshop.com/authentic-khris-davis-jersey , Oh will become a key set-up man for a Rockies’ bullpen that struggled outside of the trio of O’s (Ottavino, Oh and Scott Oberg) last season.After the 2018 season ended, Oh expressed homesickness for his native South Korea, which left many fans worrying about his future in Colorado, even with his club option for 2019 vesting. Nevertheless, Oh is still a member of the Rockies and will be a big part of the upcoming bullpen, as Harding writes.Colorado Rockies embracing loftier expectations | BSN Denver ($)Rockies manager Bud Black gathered his team at the beginning of spring training told them it’s time to be a powerhouse. At BSN Denver, Drew Creasman writes that the Rockies belong in the conversation as among the teams most likely to win a World Series. Black agrees.This article isn’t behind a paywall, so read up!Peter Lambert drawing attention as Rockies’ top pitching prospect in camp | The Denver Post ($)Peter Lambert (No. 2 PuRP) is opening eyes in spring training. Black sang his praises to Patrick Saunders of The Denver Post. While Lambert isn’t immediately likely to make the Opening Day roster, a good showing to begin the year in Triple-A will put him on the fast track to being one of the first call-ups in case of injury. Saunders also has an update on Josh Fuentes (No. 16 PuRP), who is eager to getting back to baseball after undergoing hand surgery which is expected to sideline him for 4-6 weeks.There’s another big change coming to Coors Field in 2019 Jake Smolinski Jersey , just look up | The Athletic ($)Coors Field will be switching to LED lighting for the 2019 season, reports Nick Groke of The Athletic. This is expected to be more environmentally friendly and to provide a clearer high-definition picture for television. Unlike the previous metal halide field lighting, it won’t be necessary to wait for the lights to heat up. This means there will be the potential for some exciting Coors Field light shows as well!Clayton Kershaw stops throwing, but says there is no reason to worry | The Los Angeles TimesLos Angeles Dodgers ace Clayton Kershaw has been shut down from throwing for an indefinite period of time due to what manager Dave Roberts is calling an “arm kind of thing.” Kershaw did not feel right after consecutive bullpen sessions but says himself that the “thing” isn’t much of a concern at the moment. Jorge Castillo of The Los Angeles Times has this story and more from Dodgers camp.Twins to reportedly sign Marwin Gonz谩lez | Twinkie TownThe Minnesota Twins have signed potential Rockies’ target Marwin Gonz谩lez to a two-year, $21 million contract, Hayden A of Twinkie Town relays. Gonz谩lez has the ability to play all over the diamond. Purple Row’s Eric Garcia McKinley made the case for the Rockies to sign Gonz谩lez earlier this month.MLB is testing pitch clock in spring training, hoping to add it for the 2019 regular season | SB Nation MLBMajor League Baseball will test out a 20-second pitch clock this spring. There is no confirmation that it will in fact be implemented once the regular season starts, but players will be given the opportunity to adjust over the next month. Eric Stephen of SB Nation has more, including the six pitchers who will be affected most— Bud Norris, Brad Hand, Joe Kelly http://www.athleticsfanproshop.com/authentic-khris-davis-jersey , Pedro Baez, Jeurys Familia and Sam Dyson, who all took over 30 seconds to throw a pitch in 2018.Top 100 MLB Players of 2019 | Sports IllustratedFive Rockies were included in Sports Illustrated’s rankings of the top 100 players in baseball. German M谩rquez came in at No. 91, Kyle Freeland at No. 87, Trevor Story at No. 46, Charlie Blackmon at No. 44 and Nolan Arenado at No. 8.